Geniality and genuine humour must be remembered as among the many delightful traits in Darwin's character. Mr. Edmund Yates, in his "Celebrities at Home" (second series), describes his as a laugh to remember, "a rich Homeric laugh, round and full, musical and jocund." "At a droll suggestion of Mr. Huxley's, or a humorous doubt insinuated in the musical tones of the President of the Royal Society (Sir Joseph Hooker), the eyes twinkle under the massive overhanging brows, the Socratic head, as Professor Tyndall loves to call it, is thrown back, and over the long white beard rolls out such a laugh as we have attempted to describe." Exceptionally good-hearted and sympathetic as a man, Darwin discovered his life-work, and did it, in spite of a most powerful hindrance, in the best possible manner, with the least possible waste of force. But, more than doing his work, he set others to work, incited them, suggested to them, aided them, scattered among them seeds which, finding fertile soil, sprang up and bore fruit a hundredfold. His greatness is as much in what be caused others to do as in what he did himself. Even in arousing antagonism, though by the gentlest means, he did a great work, for he secured examination and criticism in such bulk that the whole world was leavened by his doctrine; and in controversy no man has any disagreeable reminiscence of him. Many have cause to bless the day when they first came into communication with Darwin, to find him welcome them, encourage them, place his own vast stores of knowledge and thought at their disposal, and, best of all, make them love him naturally as a dear friend.